Making an audio amplifier from a 7400-series TTL open collector logic gate


In this episode, I’m talking about when I was a full-time instructor in advanced industrial electronics for Indiana Vocational Technical College (IVY Tech). For one of my labs, I challenged my students to build an analog amplifier from a 7405 TTL logic chip. It was a blast!


Photo by Florian Olivo on Unsplash


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